Question

Determine the amount of moles of SiO2 needed to produce 4.80g of CO.

SiO2(s) + _C(s) — _SiC(s) + I co(g)



A)134 mol
B)0.171 mol
C)67.2 mol
D) 0.0857 mol

Answer 1

mol(SiO₂) mol(C) mol(SiC) mol(CO)
Row 1: 0.8 x 10 0.9 x 10 0.3 x 10 0.6 x 10
Row 2: 0.2 x 10 0.6 x 10 0.2 x 10 0.4 x 10
Row 3: 8.0 2.4 x 10 8.0 1.6 x 10
Row 4: 2.8 8.4 2.8 5.6
Row 5: 0.816 2.45 0.816 1.63